GENERAL

Ultra compact for given pressure and flow rates

Flow/pressure combinations within 50 Kw range– up to 186 l/m or up to 690 bar

All externally exposed components 316 stainless steel

No external lubrication or cooling systems

The high pressure 50kW type XWHR1 hydraulic pump is specifically designed for water-based fluids. Separation of the lubricating oil and the pumped fluid is achieved by the installation of a cavity between the cylinder block and the case. Bypass from the pistons is collected in this cavity and returned to the inlet side of the pump. The XWHR1 pump incorporates up to six axial pistons actuated by a single rotating swash plate.

Applications

This high powered pump is highly suitable for Blow Out Preventer (BOP) applications, hydraulic power units (HPUs) and flushing skids.

Installation

Rotation is bi-directional and the pump may be mounted horizontally or vertically.

A suction filter of 150 microns or better should be used. Finer filtration is desirable for the pump life, but is important that the inlet flowrate to the pump is not restricted and no more than -2 in.Hg is measured in the suction pipework under pumping conditions. Where possible a positive pressure should be maintained in the suction pipework under flowing conditions. When the pump is stationary the suction line should be kept under positive pressure to allow priming.

Important - pumps are delivered from Marshalsea with the case lubricating oil drained. Before the pumps are used, the case should be filled with Castrol Alphasyn PG150 to the level specified on the pump technical data sheet